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Natural gas hydrogenation device and method for long-distance pipeline

A long-distance pipeline and natural gas technology, which is applied in the field of long-distance pipeline natural gas hydrogenation equipment, can solve problems such as uneven mixing of natural gas and hydrogen, lack of overpressure release and return pipelines, and poor control of the addition ratio, achieving automatic The effect of simple control, ensuring pipeline safety and improving safety

Pending Publication Date: 2019-03-15
SINOPEC ZHONGYUAN PETROLEUM ENG DESIGN +1
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Problems solved by technology

If it is used to add hydrogen to natural gas in long-distance pipelines, the processing capacity is small; there are multiple venting problems; the addition ratio is not easy to control and the natural gas and hydrogen are mixed unevenly after addition
And it is necessary to control the two pipelines of natural gas and hydrogen; there is no bypass in the natural gas pipeline, which is not convenient for maintenance; there is no overpressure release and return pipeline

Method used

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  • Natural gas hydrogenation device and method for long-distance pipeline
  • Natural gas hydrogenation device and method for long-distance pipeline
  • Natural gas hydrogenation device and method for long-distance pipeline

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Embodiment Construction

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "one side", "one end", "one side" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention. The invention and the simplified description do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and thus should not be construed as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invent...

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Abstract

The invention discloses a natural gas hydrogenation device and method for a long-distance pipeline. The natural gas hydrogenation device comprises a pipeline part, a PLC and a safety protection part.The pipeline part comprises a main pipe, a first pipeline, a second pipe and a mixed total pipe. The second pipe is connected with the first pipeline. The main pipe and the first pipeline are connected with the mixed total pipe. A static mixer is installed on the mixed total pipe. The PLC is connected with the main pipe and the first pipeline correspondingly. The flow of hydrogen of the first pipeline is adjusted according to the pressure and flow information of the main pipe and the first pipeline, and the hydrogen is output via the static mixer on the mixed total pipe. The safety protectionpart includes a combustible gas alarm controller and a positive pressure explosion-proof control system and can send out sound-light alarm and protect an electrical device to operate safely under thedangerous environment of explosive gas. The natural gas hydrogenation device and method for the long-distance pipeline have the advantages of simple automatic control, large dosage, continuous operation, stable adding proportion, uniform mixing, no air discharge pollution, safety and reliability.

Description

technical field [0001] The invention belongs to the technical field of gas filling, and in particular relates to a long-distance pipeline natural gas hydrogenation device and method. Background technique [0002] A certain amount of hydrogen is added to natural gas to become a new type of fuel—hydrogen natural gas, which has the advantages of both natural gas and hydrogen, fast combustion speed, lower carbon emissions, and is more environmentally friendly. It is a new way to deal with the oil crisis. Hydrogen gas has a small compression ratio and is not easy to liquefy, which leads to high transportation costs and poor economical promotion. The use of long-distance pipelines to transport together with natural gas has greatly reduced the transportation cost of hydrogen, and has become an excellent method for the promotion of hydrogen and natural gas. Since hydrogen is more explosive than natural gas, it has a certain impact on pipes. Therefore, there are high requirements o...

Claims

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Application Information

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IPC IPC(8): F17D1/02F17D3/12F17D3/01F17D3/18F17D5/00
CPCF17D1/02F17D3/01F17D3/12F17D3/18F17D5/005Y02P90/45Y02E60/34
Inventor 王秋岩邓海全丁峰仝淑月李冬林白光乾李云
Owner SINOPEC ZHONGYUAN PETROLEUM ENG DESIGN
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